mirrors/thiserror
1
0
Fork 0
mirror of https://github.com/dtolnay/thiserror.git synced 2025-04-05 05:47:39 +03:00
Code Issues Projects Releases Packages Wiki Activity

Reject display attribute on a field

Browse source
This commit is contained in:
David Tolnay 2019-10-12 13:41:56 -07:00
parent 10d1f640da
commit aa123cfe0c
No known key found for this signature in database
GPG key ID: F9BA143B95FF6D82
5 changed files with 40 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

18
impl/src/valid.rs
View file

@ -17,6 +17,9 @@ impl Struct<'_> {
fn validate(&self) -> Result<()> {
check_no_source(&self.attrs)?;
find_duplicate_source(&self.fields)?;
for field in &self.fields {
field.validate()?;
}
Ok(())
}
}
@ -42,6 +45,21 @@ impl Variant<'_> {
fn validate(&self) -> Result<()> {
check_no_source(&self.attrs)?;
find_duplicate_source(&self.fields)?;
for field in &self.fields {
field.validate()?;
}
Ok(())
}
}
impl Field<'_> {
fn validate(&self) -> Result<()> {
if let Some(display) = &self.attrs.display {
return Err(Error::new_spanned(
display.original,
"not expected here; the #[error(...)] attribute belongs on top of a struct or an enum variant",
));
}
Ok(())
}
}